Space shuttle Endeavour STS-134 astronauts arrive

Space shuttle Endeavour STS-134 astronauts, L to R, Commander Mark Kelly, Gregory Chamitoff, Andrew Feustel, Roberto Vittori (European Space Agency), Mike Fincke and pilot Gregory Johnson arrive to Kennedy Space Center on Thursday, May 12, 2011, in preparation for the planned launch of Endeavour to the International Space Station on Monday, May 16 at 8:56 a.m. This is the second attempt to send Endeavour up on its final mission after a scrub on April 29.

Space shuttle Endeavour STS-134 astronauts, L to R, Commander Mark Kelly, Gregory Chamitoff, Andrew Feustel, Roberto Vittori (European Space Agency), Mike Fincke and pilot Gregory Johnson arrive to Kennedy Space Center on Thursday, May 12, 2011, in preparation for the planned launch of Endeavour to the International Space Station on Monday, May 16 at 8:56 a.m. This is the second attempt to send Endeavour up on its final mission after a scrub on April 29. (Red Huber, Orlando Sentinel)

Space shuttle Endeavour STS-134 astronauts, L to R, Commander Mark Kelly, Gregory Chamitoff, Andrew Feustel, Roberto Vittori (European Space Agency), Mike Fincke and pilot Gregory Johnson arrive to Kennedy Space Center on Thursday, May 12, 2011, in preparation for the planned launch of Endeavour to the International Space Station on Monday, May 16 at 8:56 a.m. This is the second attempt to send Endeavour up on its final mission after a scrub on April 29.Red Huber, Orlando Sentinel